Home / 386,587,961.80-533,491,475.22-212,747,705.80

Finding the Fourth Proportional to 386,587,961.80, 533,491,475.22 and 212,747,705.80

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Solution

The fourth proportional to 386,587,961.80, 533,491,475.22 and 212,747,705.80 is: 293,591,882.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,587,961.80 : 533,491,475.22 = 212,747,705.80 : x
  2. Step 2: Convert to fraction form
    386,587,961.80/533,491,475.22 = 212,747,705.80/x
  3. Step 3: Cross multiply
    386,587,961.80x = 533,491,475.22 × 212,747,705.80
  4. Step 4: Simplify right side
    386,587,961.80x = 113,499,087,416,912,560
  5. Step 5: Solve for x
    x = 113,499,087,416,912,560/386,587,961.80
  6. Step 6: Final answer
    x = 293,591,882.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.